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Oct 25, 2024
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Dec 22, 2024
Published
Feb 1, 2025
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Abstract

In ideal conditions, offshore platform design follows standardized international criteria such as the American Petroleum Institute Recommended Practice 2A-LRFD (API RP2A-LRFD) to ensure structural reliability and safety. However, the real conditions in the Java Sea present unique challenges, as environmental loading patterns and regional factors may differ from those assumed in global standards. This study proposes a comprehensive solution through combined structural analysis and reliability assessment using Monte Carlo simulation methods. The urgency of this research stems from the critical need to validate and potentially adjust design standards for regional applications, ensuring the long-term safety and reliability of offshore structures in Southeast Asian waters. The research objectives focus on evaluating the structural reliability of a four-legged jacket type platform using both deterministic and probabilistic approaches, specifically assessing the applicability of API RP2A-LRFD criteria to Java Sea conditions. Results demonstrate that while the structure meets basic design criteria, the reliability indices (β = 16.70 for LRFD, β = 22.29 for unfactored) suggest current load factors may be overly conservative for regional conditions.

Keywords

API RP2A-LRFD Standards Monte Carlo Simulation Structural Reliability Analysis Offshore Platform Design

Article Details

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Author Biographies

Sandy Hardian Susanto Herho, Department of Earth and Planetary Sciences, University of California, Riverside, USA

Department of Earth and Planetary Sciences

Ricky Tawekal, Offshore Engineering Research Group, Bandung Institute of Technology, Bandung, Indonesia

Offshore Engineering Research Group

Dasapta Erwin Irawan, Applied Geology Research Group, Bandung Institute of Technology, Bandung, Indonesia

Applied Geology Research Group

How to Cite
1.
Kaban S, Herho SHS, Tawekal R, Irawan DE. Design and Reliability Analysis of Four-Legged Jacket Type Offshore Platform in North Java Sea. EKSAKTA [Internet]. 2025Feb.1 [cited 2025Feb.1];26(01):35-49. Available from: https://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/550

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